Apparatus for joining sheets of material

Details Apparatus for joining sheets of material Apparatus for joining sheets of material

1994-01-31

1996-01-02

Bryant, David P.

Metal working

Means to assemble or disassemble

Overedge assembling means

292835, 72465, B23P 1100

Patent

active

054796873

ABSTRACT:
An apparatus for joining sheets of material employs a die assembly having an anvil peripherally bordered by a plurality of movable die segments and a spring which urges the die segments radially toward the anvil. In a further aspect of the present invention, the spring is a coiled and canted spring. In another aspect of the present invention, the spring secures the die segments within an outer sleeve. In yet another aspect of the present invention, a unique die retainer has provisions for retaining a die assembly and for fastening such to a work surface.

REFERENCES:
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patent: 4208776 (1980-06-01), Schleicher
patent: 4757609 (1988-07-01), Sawdon
patent: 4825525 (1989-05-01), Obrecht et al.
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patent: 4910853 (1990-03-01), Sawdon
patent: 5027503 (1991-07-01), Sawdon
patent: 5150513 (1992-09-01), Sawdon
patent: 5177861 (1993-01-01), Sawdon

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